The Riddler, Scarecrow, and Hatter are three of Batman's most notorious villains. Each with their own unique abilities and motivations, they have plagued Gotham City for years.
Hatter: Oh boy! You're awake! would you like some tea!? Can I introduce you to the Cheshire cat!?
Riddler: *Fiddling with a 9x9 Rubik's cube*
Scarecrow: Quiet down Jervis. Some of us are trying to work.